Peter a



UNITED STATES PATENT OFFICE.

PETER A. AIKMAN, OF WINDSOR, ONTARIO, CANADA, ASSIGNOR TO THE AIKMANAUTOMATIC CAR COUPLER COMPANY, OF DETROIT, MICH.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 343,528, dated June 8.1886.

Application filed February 11, 18%6. Serial No. 191,621. (No model.)

To all whom it may concern:

Be it known that I, PETER A. AIKMAN, of Windsor, in the county of Essexand Province of Ontario, Canada, have invented a new and usefulImprovementin Car-Couplings, of which the following is a specification.

My invention consists in an improvement in car-couplings, hereinafterfully pointed out.

Figure 1 is a longitudinal vertical section, and Fig. 2is a plan view.

My invention is an improvement on the carcoupliiig shown in LettersPatent No. 331,467, granted to me December 1, 1885.

2 represents a draw-bar having a flaring mouth, and 1 represents acoupling-hook lying within a slot cut in said draw-bar, and pivotedthereto by a pin, 3. The upper portion of the draw-bar back as far aslug 4 extends down, as shown at 11, below the shank of the coupling-hookwhen said hook is down, to hold the link horizontal, and prevent thelink when jarred from throwing up the hook and slipping out.

8 represents a rock shaft; 9 9, bearings for said shaft; 10 10, leversto move said rock shaft, and 7 a double cam secured to said rockshaft,all as in said patent.

6 represents a hole through the draw-bar, to receive acommon pin for theordinary linkand-pin coupling should any accident happen to the couplingor to the coupling-hook.

4 represents a lug formed on the inner side of the draw-bar to supportthe link in making coupling with another car, as described in my otherpatent; but in this invention I carry said lug back far enough to bearagainst and support the forward side of the lug 5 on the coupling -hook,and make the hole 12 through said hook a little larger than the pin 3,so that nearly all the strain on the hook will be taken by lug 4 insteadof by the bolt. When the coupling is in use, therefore, the strain willbe in the direct line of draft on the lug 4, and the point of the hookwill also be supported by the draw-bar proper, as set forth and claimedin the application for reissue of my said patent, filed herewith, andthis renders my improved coupling very strong, simple, and cheap.

What I claim as my invention, and desire to secure by Letters Patent, is

1. A draw-bar having its bottom wall provided with anupwardly-projecting interior lug, 4, in combination with thelongitudinallymovable coupling-hook having a loose pivotal attachment,and provided with the depending lug between its hooked end and itspivotal attachment to abut against the lug of the drawbar, substantiallyas described.

2. The combination, with the slotted drawbar, of the coupling-hookloosely pivoted in the slot thereof, said slot having its oppositelongitudinal edges extended into the draw-bar below the shank of thehook, substantially as and for the purpose described.

3. The draw-bar having its bottom wall provided with anupwardly-projecting interior lug, 4, in combination with the transversepin 3, and the longitudinally-movable couplinghook having the hole 12,of a diameter larger than the pin, said coupling-hook having between itshooked end and the pin a depending lug, 5, to bear against the lug ofthe draw-bar, substantially as described.

' P. A. AIKMAN.

Witnesses: v

SUMNER GOLLINs, GEO. H. LOTHROP.

